Home / 18,514.16-25,549.92-10,130.72

Finding the Fourth Proportional to 18,514.16, 25,549.92 and 10,130.72

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Solution

The fourth proportional to 18,514.16, 25,549.92 and 10,130.72 is: 13,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.16 : 25,549.92 = 10,130.72 : x
  2. Step 2: Convert to fraction form
    18,514.16/25,549.92 = 10,130.72/x
  3. Step 3: Cross multiply
    18,514.16x = 25,549.92 × 10,130.72
  4. Step 4: Simplify right side
    18,514.16x = 258,839,085.54
  5. Step 5: Solve for x
    x = 258,839,085.54/18,514.16
  6. Step 6: Final answer
    x = 13,980.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.